Antique radios, Old Time Radios
P220_Lissen
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Country:
Great Britain (UK)
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| Identical to |
P220_Lissen
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| Similar
Tubes |
Normally replaceable-slightly different:
PM2
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| First year |
1929
Wireless World (The), London (WW, 79) Tests in Jan 1 1930 issue.
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.2 Ampere / Direct / Battery = |
| Description |
Ra 4700 ohms, Gm 1.5mA/V at Va=100 and Vg=0.
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| Information source |
History of the British Radio Valve to 1940 p. 146
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P220_Lissen: Fin Stewart
Fin Stewart
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Just Qvigstad
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